Refactor Travis build script

Author: nulltoken

.travis.yml

@@ -3,22 +3,14 @@
 
 language: c
 
-# Make sure CMake is installed
+# Make sure CMake and Mono are installed
 install:
  - sudo apt-get install cmake mono-devel mono-gmcs
 
 # Build libgit2, LibGit2Sharp and run the tests
 script:
  - git submodule update --init
- - mkdir cmake-build
- - LIBGIT2SHA=`cat ./LibGit2Sharp/libgit2_hash.txt`
- - SHORTSHA=${LIBGIT2SHA:0:7}
- - cd cmake-build
- - cmake -DTHREADSAFE=ON -DCMAKE_BUILD_TYPE=Release -DBUILD_CLAR=OFF -DBUILD_SHARED_LIBS=ON -DCMAKE_INSTALL_PREFIX=./libgit2-bin -DSONAME_APPEND=$SHORTSHA ../libgit2
- - export LD_LIBRARY_PATH=$PWD/libgit2-bin/lib
- - cmake --build . --target install
- - cd ..
- - xbuild CI-build.msbuild /t:Deploy
+ - ./build.libgit2sharp.sh
 
 # Only watch the development branch
 branches: